ltc2203 Linear Technology Corporation, ltc2203 Datasheet

ltc2203

Manufacturer Part Number

ltc2203

Description

16-bit, 25msps Adc

Manufacturer

Linear Technology Corporation

Datasheet

1.LTC2203.pdf (32 pages)

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FEATURES

APPLICATIO S

■

TYPICAL APPLICATIO

ANALOG

INPUT

Sample Rate: 25Msps/10Msps

81.6dB SNR and 100dB SFDR (2.5V Range)

SFDR 90dB at 70MHz (1.667V

PGA Front End (2.5V

380MHz Full Power Bandwidth S/H

Optional Internal Dither

Optional Data Output Randomizer

Single 3.3V Supply

Power Dissipation: 220mW/140mW

Clock Duty Cycle Stabilizer

Out-of-Range Indicator

Pin Compatible Family

48-Pin (7mm × 7mm) QFN Package

Telecommunications

Receivers

Cellular Base Stations

Spectrum Analysis

Imaging Systems

ATE

2.2μF

25Msps: LTC2203 (16-Bit)

10Msps: LTC2202 (16-Bit)

–

COMMON MODE

BIAS VOLTAGE

–

CLOCK/DUTY

CLK

CONTROL

AMP

S/H

CYCLE

1.25V

INTERNAL ADC

GENERATOR

REFERENCE

PIPELINED

ADC CORE

P-P

16-BIT

3.3V

SENSE

PGA

or 1.667V

SHDN

ADC CONTROL INPUTS

P-P

SHIFT REGISTER

CORRECTION

LOGIC AND

DITH

Input Range)

P-P

MODE

Input Range)

DRIVERS

OUTPUT

RAND

OGND

GND

16-Bit, 25Msps/10Msps ADCs

CLKOUT+

CLKOUT–

D15

•

1μF

DESCRIPTIO

The LTC

16-bit A/D converters designed for digitizing high frequen-

cy, wide dynamic range signals with input frequencies up

to 380MHz. The input range of the ADC can be optimized

with the PGA front end.

The LTC2203/LTC2202 are perfect for demanding ap-

plications, with AC performance that includes 81.6dB

SNR and 100dB spurious free dynamic range (SFDR).

Maximum DC specs include ±4LSB INL, ±1LSB DNL (no

missing codes).

A separate output power supply allows the CMOS output

swing to range from 0.5V to 3.6V.

A single-ended CLK input controls converter operation. An

optional clock duty cycle stabilizer allows high performance

at full speed with a wide range of clock duty cycles.

other trademarks are the property of their respective owners. Protected by U.S. Patents

including 4843302 and 6949965B1

0.5V TO 3.6V

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All

CMOS

OUTPUTS

1μF

2203/LTC2202 are 25Msps/10Msps, sampling

22032 TA01

1μF

3.3V

LTC2203/LTC2202

–100

–110

–130

–140

–120

–60

–80

–10

–20

–30

–40

–50

–70

–90

LTC2203: 128K Point FFT,

= 5.1MHz, –1dBFS, PGA = 0

FREQUENCY(MHz)

22032 GO7

22032fb

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